阅读说明：本技术 一种金属涂层配方及喷涂方法 (Metal coating formula and spraying method ) 是由 苗珍录 于 2021-07-06 设计创作，主要内容包括：本发明属于金属涂层技术领域,尤其一种金属涂层配方及喷涂方法,包括耐磨层和粘结层,所述耐磨层包括氧化硅粉末、去离子水、氧化铅粉末、碳化硅、碳化钨和密着剂,所述粘结层包括环氧树酯、聚酯树酯、甲醚化氨基树酯、流平剂、丙烯酸羟乙酯、丙烯酸和过氧化苯甲酰；本发明制得粘结剂,具有很好的粘结性能,不会受到环境、温度的影响,稳定性高,对耐磨层起到很好的粘结作用,增强耐磨层的防脱性能,自制的耐磨层具有很好的致密性和韧性以及耐蚀、优异的高温强度,拥有较低的摩擦系数同时还有减磨性,提升金属涂层的整体性能,有效提高金属涂层的使用寿命。(The invention belongs to the technical field of metal coatings, and particularly relates to a metal coating formula and a spraying method, which comprise a wear-resistant layer and a bonding layer, wherein the wear-resistant layer comprises silicon oxide powder, deionized water, lead oxide powder, silicon carbide, tungsten carbide and an adhesive, and the bonding layer comprises epoxy resin, polyester resin, methylated amino resin, a leveling agent, hydroxyethyl acrylate, acrylic acid and benzoyl peroxide; the prepared adhesive has good adhesive property, is not influenced by environment and temperature, has high stability, plays a good role in bonding a wear-resistant layer, enhances the anti-falling performance of the wear-resistant layer, has good compactness and toughness, corrosion resistance and excellent high-temperature strength of the self-made wear-resistant layer, has lower friction coefficient and friction reduction, improves the overall performance of a metal coating, and effectively prolongs the service life of the metal coating.)

1. The metal coating formula is characterized by comprising a wear-resistant layer and a bonding layer, wherein the wear-resistant layer comprises silicon oxide powder, deionized water, lead oxide powder, silicon carbide, tungsten carbide and an adhesive, and the bonding layer comprises epoxy resin, polyester resin, methylated amino resin, a leveling agent, hydroxyethyl acrylate, acrylic acid and benzoyl peroxide.

2. The metal coating formulation of claim 1, wherein the wear layer comprises the following raw materials in parts by weight: 6-12 parts of silicon oxide powder, 5-9 parts of deionized water, 2-7 parts of lead oxide powder, 5-12 parts of silicon carbide, 2-9 parts of tungsten carbide and 2-5 parts of an adhesive.

3. The metal coating formulation of claim 1, wherein the bonding layer comprises the following raw materials in parts by weight: 7-14 parts of epoxy resin, 5-14 parts of polyester resin, 6-15 parts of methylated amino resin, 2-7 parts of a leveling agent, 7-15 parts of hydroxyethyl acrylate, 6-13 parts of acrylic acid and 5-9 parts of benzoyl peroxide.

4. The metal coating formulation of claim 1, wherein the wear layer comprises the following raw materials in parts by weight: 9 parts of silicon oxide powder, 7 parts of deionized water, 5 parts of lead oxide powder, 9 parts of silicon carbide, 6 parts of tungsten carbide and 4 parts of adhesion agent.

5. The metal coating formulation of claim 1, wherein the bonding layer comprises the following raw materials in parts by weight: 11 parts of epoxy resin, 10 parts of polyester resin, 11 parts of methylated amino resin, 5 parts of flatting agent, 11 parts of hydroxyethyl acrylate, 10 parts of acrylic acid and 7 parts of benzoyl peroxide.

6. A method of spraying a metal coating according to any of claims 1 to 5, comprising the steps of:

s1, preparing a wear-resistant layer raw material, comprising the following steps:

s11, weighing and mixing the raw materials: weighing the silicon oxide powder, the deionized water, the lead oxide powder, the silicon carbide, the tungsten carbide and the adhesion agent in parts by weight, and mixing and stirring to prepare a mixed material;

s12, ball milling and crushing, namely ball milling and crushing the mixed material to obtain pug passing through a 250-mesh sieve, wherein the rotating speed of the ball mill is 200-400r/min, and the ball milling time is 6-10 hours to obtain the wear-resistant layer coating;

s13, carrying out heat treatment on the mixed powder, and cooling to obtain spraying powder;

s2, preparing a binder, comprising the following steps:

s21, weighing the epoxy resin, the polyester resin, the methylated amino resin and the flatting agent in parts by weight, adding into a reaction kettle, heating to 72-74 ℃, stirring for 2-3h at a stirring speed of 200 plus 300rad/min, and obtaining a component A;

s22, uniformly mixing hydroxyethyl acrylate, acrylic acid and benzoyl peroxide to obtain a component B;

s23, mixing the components: adding the component B into the component A, heating to 90-110 ℃, and continuously stirring for 1-3 h;

s24, cooling to obtain a binder;

s3, metal treatment, namely performing sand blasting treatment on the metal;

s4, preparing a bonding layer, namely uniformly coating the bonding agent on the metal to form the bonding layer;

and S5, spraying the wear-resistant layer, adding the wear-resistant layer paint into ion spraying equipment, spraying the wear-resistant layer paint on the bonding layer, and cooling to obtain the metal coating.

7. The method of claim 6, wherein in step S5, argon is used as the main shielding gas and hydrogen is used as the anti-oxidation gas during the spraying process of the ion spraying equipment; after a workpiece to be sprayed is fixed, firstly, argon is fed, impurities in a spray gun are sprayed, and then, hydrogen is introduced for spraying; the technological parameters during spraying are as follows: the spraying distance is 120-150mm, the working current is 380-400A, the working voltage is 145-147V, the Ar gas speed is 120-140L/min, the hydrogen gas speed is 15-20L/min, the powder delivery amount is 30-40g/min, and the moving speed of the spraying gun body relative to the crankshaft spraying surface is 10-100 mm/s.

8. The method of claim 6, wherein the step S3, the sand blasting is performed with 40 mesh quartz sand and 0.2MPa wind pressure, and compressed air is blown to the blasted surface for 5 min.

9. The method of claim 6, wherein the adhesion agent is selected from any one of cobalt oxide, antimony oxide, and nickel oxide.

10. The method of claim 6, wherein the leveling agent is an acrylate.

Technical Field

The invention relates to the technical field of metal coatings, in particular to a metal coating formula and a spraying method.

Background

The coating is a solid continuous film obtained by coating once, and is a thin plastic layer coated on a substrate such as metal, fabric, plastic and the like for the purposes of protection, insulation, decoration and the like. The coating material can be in a gas state, a liquid state or a solid state, and the type and the state of the coating material are generally determined according to the substrate needing to be sprayed. With the development of social science and technology and the more extreme requirements of aviation, navigation and industry on mechanical operation environment, mechanical moving parts face serious friction and wear problems, so that a high-performance wear-resistant and corrosion-resistant coating is required to provide guarantee. On the other hand, various industries and machines are developing towards long service life and high stability, and the performance requirements on equipment coatings are increasing day by day. The coating materials and the technology adopted at present are developed in the last 70 and 80 years, and cannot meet the use requirements in the aspects of reliability, long service life, ultra-low friction and the like. The low friction and the long service life of the coating material suitable for extreme working conditions in recent years are key technologies, so that the method has very important significance. At present, most engines have obvious part abrasion after running for more than 5 years, the overall performance is greatly reduced, and with the popularization of automobiles in the current society and energy conservation and emission reduction in the global range, higher requirements are put forward on the reliability and service life of machinery. The high-end technologies such as transportation, aviation, aerospace, nuclear energy and the like urgently require the use of high-temperature-resistant, wear-resistant and low-friction coatings to protect the surfaces of metal parts and components, and increase the working efficiency, output power and service life of key parts and components in the fields of aerospace and the like.

The metal coating can prevent excessive mechanical friction and prolong the service life of the part. In addition, oxygen can be isolated from entering, oxidation and rust are prevented, the use performance of the material is guaranteed, the existing metal coating is poor in wear resistance and easy to fall off during friction, and the service life of the metal coating is greatly influenced.

Therefore, the application provides a metal coating formula and a spraying method.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background technology, the invention provides a metal coating formula and a spraying method.

(II) technical scheme

In order to solve the problems, the invention provides a metal coating formula which comprises a wear-resistant layer and a bonding layer, wherein the wear-resistant layer comprises silicon oxide powder, deionized water, lead oxide powder, silicon carbide, tungsten carbide and an adhesive, and the bonding layer comprises epoxy resin, polyester resin, methylated amino resin, a leveling agent, hydroxyethyl acrylate, acrylic acid and benzoyl peroxide.

Preferably, the wear-resistant layer comprises the following raw materials in parts by weight: 6-12 parts of silicon oxide powder, 5-9 parts of deionized water, 2-7 parts of lead oxide powder, 5-12 parts of silicon carbide, 2-9 parts of tungsten carbide and 2-5 parts of an adhesive.

Preferably, the bonding layer comprises the following raw materials in parts by weight: 7-14 parts of epoxy resin, 5-14 parts of polyester resin, 6-15 parts of methylated amino resin, 2-7 parts of a leveling agent, 7-15 parts of hydroxyethyl acrylate, 6-13 parts of acrylic acid and 5-9 parts of benzoyl peroxide.

Preferably, the wear-resistant layer comprises the following raw materials in parts by weight: 9 parts of silicon oxide powder, 7 parts of deionized water, 5 parts of lead oxide powder, 9 parts of silicon carbide, 6 parts of tungsten carbide and 4 parts of adhesion agent.

Preferably, the bonding layer comprises the following raw materials in parts by weight: 11 parts of epoxy resin, 10 parts of polyester resin, 11 parts of methylated amino resin, 5 parts of flatting agent, 11 parts of hydroxyethyl acrylate, 10 parts of acrylic acid and 7 parts of benzoyl peroxide.

A method of spraying a metal coating comprising the steps of:

s1, preparing a wear-resistant layer raw material, comprising the following steps:

s11, weighing and mixing the raw materials: weighing the silicon oxide powder, the deionized water, the lead oxide powder, the silicon carbide, the tungsten carbide and the adhesion agent in parts by weight, and mixing and stirring to prepare a mixed material;

s12, ball milling and crushing, namely ball milling and crushing the mixed material to obtain pug passing through a 250-mesh sieve, wherein the rotating speed of the ball mill is 200-400r/min, and the ball milling time is 6-10 hours to obtain the wear-resistant layer coating;

s13, carrying out heat treatment on the mixed powder, and cooling to obtain spraying powder;

s2, preparing a binder, comprising the following steps:

s21, weighing the epoxy resin, the polyester resin, the methylated amino resin and the flatting agent in parts by weight, adding into a reaction kettle, heating to 72-74 ℃, stirring for 2-3h at a stirring speed of 200 plus 300rad/min, and obtaining a component A;

s22, uniformly mixing hydroxyethyl acrylate, acrylic acid and benzoyl peroxide to obtain a component B;

s23, mixing the components: adding the component B into the component A, heating to 90-110 ℃, and continuously stirring for 1-3 h;

s24, cooling to obtain a binder;

s3, metal treatment, namely performing sand blasting treatment on the metal;

s4, preparing a bonding layer, namely uniformly coating the bonding agent on the metal to form the bonding layer;

and S5, spraying the wear-resistant layer, adding the wear-resistant layer paint into ion spraying equipment, spraying the wear-resistant layer paint on the bonding layer, and cooling to obtain the metal coating.

Preferably, in step S5, in the spraying process of the ion spraying equipment, argon is used as the main shielding gas, and hydrogen is used as the anti-oxidation gas; after a workpiece to be sprayed is fixed, firstly, argon is fed, impurities in a spray gun are sprayed, and then, hydrogen is introduced for spraying; the technological parameters during spraying are as follows: the spraying distance is 120-150mm, the working current is 380-400A, the working voltage is 145-147V, the Ar gas speed is 120-140L/min, the hydrogen gas speed is 15-20L/min, the powder delivery amount is 30-40g/min, and the moving speed of the spraying gun body relative to the crankshaft spraying surface is 10-100 mm/s.

Preferably, in step S3, the sand blasting is performed by using 40-mesh quartz sand and 0.2MPa wind pressure, and compressed air is blown to the sand blasting surface for 5 min.

Preferably, the adhesion agent is selected from any one of cobalt oxide, antimony oxide and nickel oxide.

Preferably, the leveling agent is an acrylate.

The technical scheme of the invention has the following beneficial technical effects:

the epoxy resin, the polyester resin, the methylated amino resin and the leveling agent are added into a reaction kettle, and are mixed with the hydroxyethyl acrylate, the acrylic acid and the benzoyl peroxide mixed component during heating and stirring to prepare the adhesive, which has good adhesive property, high stability and no influence from environment and temperature. The self-made adhesive is uniformly coated on metal to form a bonding layer, and then the wear-resistant layer is sprayed on the bonding layer, so that the self-made adhesive has a good bonding effect on the wear-resistant layer, and the anti-falling performance of the wear-resistant layer is enhanced.

According to the invention, silicon oxide powder, deionized water, lead oxide powder, silicon carbide, tungsten carbide, an adhesion agent are mixed and stirred to prepare a mixed material, the mixed material is subjected to ball milling and crushing, and the mixed material is subjected to ball milling and crushing to obtain a wear-resistant layer coating, wherein the wear-resistant layer coating has stable performance, good compactness and toughness, corrosion resistance and excellent high-temperature strength; the wear-resistant layer coating is added with ion spraying equipment for spraying on the bonding layer, so that the metal coating has good wear resistance and corrosion resistance, has low friction coefficient and friction reduction, improves the overall performance of the metal coating, and effectively prolongs the service life of the metal coating.

The prepared adhesive has good adhesive property, is not influenced by environment and temperature, has high stability, plays a good role in bonding a wear-resistant layer, enhances the anti-falling performance of the wear-resistant layer, has good compactness and toughness, corrosion resistance and excellent high-temperature strength of the self-made wear-resistant layer, has lower friction coefficient and friction reduction, improves the overall performance of a metal coating, and effectively prolongs the service life of the metal coating.

Drawings

FIG. 1 is a process flow diagram of the present invention.

FIG. 2 is a flow chart of the preparation of the raw material of the wear-resistant layer of the present invention.

FIG. 3 is a schematic diagram of the binder preparation process of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The invention provides a metal coating formula which comprises a wear-resistant layer and a bonding layer, wherein the wear-resistant layer comprises silicon oxide powder, deionized water, lead oxide powder, silicon carbide, tungsten carbide and an adhesive, and the bonding layer comprises epoxy resin, polyester resin, methylated amino resin, a leveling agent, hydroxyethyl acrylate, acrylic acid and benzoyl peroxide.

Example one

Referring to fig. 1-3, a method of spraying a metal coating includes the steps of:

s1, preparing a wear-resistant layer raw material, comprising the following steps:

s11, weighing and mixing the raw materials: weighing 6 parts of silicon oxide powder, 5 parts of deionized water, 2 parts of lead oxide powder, 5 parts of silicon carbide, 2 parts of tungsten carbide and 2 parts of adhesive, and mixing and stirring to prepare a mixed material;

s12, performing ball milling and crushing, namely performing ball milling and crushing on the mixed material to obtain pug which is sieved by a 250-mesh sieve, wherein the rotating speed of a ball mill is 200r/min, and the ball milling time is 6 hours to obtain the wear-resistant layer coating;

s13, carrying out heat treatment on the mixed powder, and cooling to obtain spraying powder;

s2, preparing a binder, comprising the following steps:

s21, weighing 7 parts of epoxy resin, 5 parts of polyester resin, 6 parts of methylated amino resin and 2 parts of flatting agent, adding into a reaction kettle, heating to 72 ℃, stirring for 2 hours at a stirring speed of 200rad/min, and obtaining a component A;

s22, uniformly mixing 7 parts of hydroxyethyl acrylate, 6 parts of acrylic acid and 5 parts of benzoyl peroxide to obtain a component B;

s23, mixing the components: adding the component B into the component A, heating to 90 ℃, and continuously stirring for 1 h;

s24, cooling to obtain a binder;

s3, metal treatment, namely performing sand blasting treatment on metal, wherein the sand blasting treatment adopts 40-mesh quartz sand and 0.2MPa of wind pressure, and compressed air is blown to the sand blasting surface for 5 min;

s4, preparing a bonding layer, namely uniformly coating the bonding agent on the metal to form the bonding layer;

s5, spraying the wear-resistant layer, adding the wear-resistant layer paint into ion spraying equipment to be sprayed on the bonding layer, and cooling to obtain the metal coating, wherein argon is used as a main protective gas and hydrogen is used as an anti-oxidation gas in the spraying process of the ion spraying equipment; after a workpiece to be sprayed is fixed, firstly, argon is fed, impurities in a spray gun are sprayed, and then, hydrogen is introduced for spraying; the technological parameters during spraying are as follows: the spraying distance is 120mm, the working current is 380A, the working voltage is 145V, the Ar gas speed is 120L/min, the hydrogen gas speed is 15L/min, the powder feeding amount is 30g/min, and the moving speed of the spraying gun body relative to the crankshaft spraying surface is 10 mm/s.

In this embodiment, the adhesion agent is selected from any one of cobalt oxide, antimony oxide, and nickel oxide, and the leveling agent is acrylate.

Example two

Referring to fig. 1-3, a method of spraying a metal coating includes the steps of:

s1, preparing a wear-resistant layer raw material, comprising the following steps:

s11, weighing and mixing the raw materials: weighing 9 parts of silicon oxide powder, 7 parts of deionized water, 5 parts of lead oxide powder, 9 parts of silicon carbide, 6 parts of tungsten carbide and 4 parts of adhesive, and mixing and stirring to prepare a mixed material;

s12, performing ball milling and crushing, namely performing ball milling and crushing on the mixed material to obtain pug passing through a 250-mesh sieve, wherein the rotating speed of the ball mill is 300r/min, and the ball milling time is 8 hours to obtain the wear-resistant layer coating;

s13, carrying out heat treatment on the mixed powder, and cooling to obtain spraying powder;

s2, preparing a binder, comprising the following steps:

s21, weighing 11 parts of epoxy resin, 10 parts of polyester resin, 11 parts of methylated amino resin and 5 parts of flatting agent, adding into a reaction kettle, heating to 73 ℃, stirring for 2.5h at a stirring speed of 250rad/min, and obtaining a component A;

s22, uniformly mixing 11 parts of hydroxyethyl acrylate, 10 parts of acrylic acid and 7 parts of benzoyl peroxide to obtain a component B;

s23, mixing the components: adding the component B into the component A, heating to 100 ℃, and continuously stirring for 2 hours;

s24, cooling to obtain a binder;

s3, metal treatment, namely performing sand blasting treatment on metal, wherein the sand blasting treatment adopts 40-mesh quartz sand and 0.2MPa of wind pressure, and compressed air is blown to the sand blasting surface for 5 min;

s4, preparing a bonding layer, namely uniformly coating the bonding agent on the metal to form the bonding layer;

s5, spraying the wear-resistant layer, adding the wear-resistant layer paint into ion spraying equipment to be sprayed on the bonding layer, and cooling to obtain the metal coating, wherein argon is used as a main protective gas and hydrogen is used as an anti-oxidation gas in the spraying process of the ion spraying equipment; after a workpiece to be sprayed is fixed, firstly, argon is fed, impurities in a spray gun are sprayed, and then, hydrogen is introduced for spraying; the technological parameters during spraying are as follows: the spraying distance is 135mm, the working current is 390A, the working voltage is 146V, the Ar gas speed is 130L/min, the hydrogen gas speed is 17L/min, the powder feeding amount is 35g/min, and the moving speed of the spraying gun body relative to the crankshaft spraying surface is 50 mm/s.

EXAMPLE III

Referring to fig. 1-3, a method of spraying a metal coating includes the steps of:

s1, preparing a wear-resistant layer raw material, comprising the following steps:

s11, weighing and mixing the raw materials: weighing 12 parts of silicon oxide powder, 9 parts of deionized water, 7 parts of lead oxide powder, 12 parts of silicon carbide, 9 parts of tungsten carbide and 5 parts of adhesive, and mixing and stirring to prepare a mixed material;

s12, performing ball milling and crushing, namely performing ball milling and crushing on the mixed material to obtain pug passing through a 250-mesh sieve, wherein the rotating speed of the ball mill is 400r/min, and the ball milling time is 10 hours to obtain the wear-resistant layer coating;

s13, carrying out heat treatment on the mixed powder, and cooling to obtain spraying powder;

s2, preparing a binder, comprising the following steps:

s21, weighing 14 parts of epoxy resin, 14 parts of polyester resin, 15 parts of methylated amino resin and 7 parts of flatting agent, adding into a reaction kettle, heating to 74 ℃, stirring for 3 hours at the stirring speed of 300rad/min, and obtaining a component A;

s22, uniformly mixing 15 parts of hydroxyethyl acrylate, 13 parts of acrylic acid and 9 parts of benzoyl peroxide to obtain a component B;

s23, mixing the components: adding the component B into the component A, heating to 110 ℃, and continuously stirring for 3 hours;

s24, cooling to obtain a binder;

s3, metal treatment, namely performing sand blasting treatment on metal, wherein the sand blasting treatment adopts 40-mesh quartz sand and 0.2MPa of wind pressure, and compressed air is blown to the sand blasting surface for 5 min;

s4, preparing a bonding layer, namely uniformly coating the bonding agent on the metal to form the bonding layer;

s5, spraying the wear-resistant layer, adding the wear-resistant layer paint into ion spraying equipment to be sprayed on the bonding layer, and cooling to obtain the metal coating, wherein argon is used as a main protective gas and hydrogen is used as an anti-oxidation gas in the spraying process of the ion spraying equipment; after a workpiece to be sprayed is fixed, firstly, argon is fed, impurities in a spray gun are sprayed, and then, hydrogen is introduced for spraying; the technological parameters during spraying are as follows: the spraying distance is 150mm, the working current is 400A, the working voltage is 147V, the Ar gas speed is 140L/min, the hydrogen gas speed is 20L/min, the powder feeding amount is 40g/min, and the moving speed of the spraying gun body relative to the crankshaft spraying surface is 100 mm/s.

According to the invention, the epoxy resin, the polyester resin, the methylated amino resin and the leveling agent are added into the reaction kettle, and are mixed with the hydroxyethyl acrylate, the acrylic acid and the benzoyl peroxide mixed component during heating and stirring to prepare the adhesive, which has good adhesive property, high stability and no influence from environment and temperature. The self-made adhesive is uniformly coated on metal to form a bonding layer, and then the wear-resistant layer is sprayed on the bonding layer, so that the self-made adhesive has a good bonding effect on the wear-resistant layer, and the anti-falling performance of the wear-resistant layer is enhanced. According to the invention, silicon oxide powder, deionized water, lead oxide powder, silicon carbide, tungsten carbide, an adhesion agent are mixed and stirred to prepare a mixed material, the mixed material is subjected to ball milling and crushing, and the mixed material is subjected to ball milling and crushing to obtain a wear-resistant layer coating, wherein the wear-resistant layer coating has stable performance, good compactness and toughness, corrosion resistance and excellent high-temperature strength; the wear-resistant layer coating is added with ion spraying equipment for spraying on the bonding layer, so that the metal coating has good wear resistance and corrosion resistance, has low friction coefficient and friction reduction, improves the overall performance of the metal coating, and effectively prolongs the service life of the metal coating. The prepared adhesive has good adhesive property, is not influenced by environment and temperature, has high stability, plays a good role in bonding a wear-resistant layer, enhances the anti-falling performance of the wear-resistant layer, has good compactness and toughness, corrosion resistance and excellent high-temperature strength of the self-made wear-resistant layer, has lower friction coefficient and friction reduction, improves the overall performance of a metal coating, and effectively prolongs the service life of the metal coating.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention.